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54525987937 = 143937891583
BaseRepresentation
bin110010110010000000…
…001000110001100001
312012202000021011212201
4302302000020301201
51343132123103222
641014321053201
73640130151601
oct626200106141
9165660234781
1054525987937
1121140553853
12a698787201
1351ac6452b5
1428d3882c01
151641db8427
hexcb2008c61

54525987937 has 4 divisors (see below), whose sum is σ = 54563880960. Its totient is φ = 54488094916.

The previous prime is 54525987871. The next prime is 54525987959. The reversal of 54525987937 is 73978952545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73978952545 = 514795790509.

It is a cyclic number.

It is not a de Polignac number, because 54525987937 - 27 = 54525987809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54525987977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18944353 + ... + 18947230.

It is an arithmetic number, because the mean of its divisors is an integer number (13640970240).

Almost surely, 254525987937 is an apocalyptic number.

It is an amenable number.

54525987937 is a deficient number, since it is larger than the sum of its proper divisors (37893023).

54525987937 is a wasteful number, since it uses less digits than its factorization.

54525987937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37893022.

The product of its digits is 95256000, while the sum is 64.

The spelling of 54525987937 in words is "fifty-four billion, five hundred twenty-five million, nine hundred eighty-seven thousand, nine hundred thirty-seven".

Divisors: 1 1439 37891583 54525987937